Tooth brush with replaceable bristles

ABSTRACT

A tooth brush with replaceable bristles is disclosed. A brush head of the tooth brush includes a housing, a connection mechanism, a bristle part and a button. The connection mechanism is fixedly installed in the housing. The bristle part is detachably mounted to the connection mechanism. The button is movably mounted to the housing by the connection mechanism, and is capably to be pushed toward the bristle part to dismantle the bristle part from the connection mechanism. As such, by simply pushing the button, a convenient replacement of the bristles of the tooth brush is achieved.

FIELD OF THE INVENTION

This invention relates to a tooth brush with replaceable bristles, more particular, this invention provides a convenient replacement of a bristle part detachable from the head of a tooth brush by one-button pushing.

BACKGROUND

A tooth brush generally includes a brush handle with bristles planted on the front end or the head of the brush handle. The tooth brush with the replaceable head is well-known. Along with a detachment of the tooth brush making it easier for consumer to replace when it becomes worn or slit. However, to throw away a w hole b rush head is still not economical. For cost saving and oral hygiene, the bristles of the brush head should be the most frequently exchanged part. Therefore, there is a need to provide a brush head with replaceable bristles for the tooth brush.

SUMMARY

Accordingly, the preset invention is to provide a b rush head with replaceable bristles. When the tooth brush is worn out, one may replace only the bristles without disposing the brush head and even the tooth brush itself.

The brush head of the present invention includes a housing, a connection mechanism, a bristle part and a button. The connection mechanism is fixedly installed in the housing. The bristle part is detachably mounted to the connection mechanism. The button is movably mounted to the housing by the connection mechanism, and is capably to be pushed toward the bristle part to dismantle the bristle part from the connection mechanism. As such, by simply pushing the button, a convenient replacement of the bristles of the tooth brush is achieved.

These and other objectives of the present invention will become obvious to those of ordinary skill in the art after reading the following detailed description of preferred embodiments.

It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

These, as well as other features of the present invention, will become apparent upon reference to the drawings wherein:

FIG. 1 illustrates a perspective view of a brush head according to the present invention; and

FIG. 2 illustrates a partial cross-sectional view of the assembly of a brush head according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.

Please refer to FIGS. 1 and 2, a brush head for a brush tooth is shown. The brush head 10 includes a bristle part 11, a housing 12, a locking member 13, a clicking ring 14, a supporting ring 15, a connection bolt 16, a cover 17, a spring 18 and a button. The housing 12 has a recess 121 formed on a front end for the supporting ring 15, the connection bolt 16, the cover 17 and the spring 18 to be furnished therein. Moreover, a through hole 123 is formed in the recess 121 for the connection bolt 16 passing through. In assembling, the connection bolt 16 is first inserted in the supporting ring 15 to put in the through hole 123. The connection bolt 16 has a head section 161 which is larger than a body section 163 thereof so that the supporting ring 15 is located on the body section 163 and is sandwiched between a bottom 125 of the recess and the head section 161 of the connection bolt 16. Thereafter, the clicking ring 14 is put on the body section 163 of the connection bolt 16 from the other side of the housing 12. A slit 162 is formed on the body section 163 adjacent to a foot section 165 of the connection bolt 16 so that the locking member 13 can clamp the connection bolt 16 through the slit 162 to sandwich the clicking ring 14 between the bottom 125 of the recess and the locking member 13. As such, the assembly of the locking member 13, the clicking ring 14, the supporting ring 15 and the connection bolt 16 forms a connection mechanism installed in the brush head for the bristle part 11 to be detachably mounted to the brush head thereby as described as follows.

In order to mount the bristle part 11, the bristle part 11 has a cavity 111 to receive the foot section 165 and has a plurality of columns 113 formed around the cavity 111 to clip the clicking ring 14. The foot section 165 is formed in a hexagon to fit in a corresponding hexagonal cavity 11 of the bristle part 11. Moreover, each column 113 has a protrusion 115 to clutch in a round rail 141 formed on the clicking ring. 14 to make the clipping of the bristle part 11 to the clicking ring 14. As such, the bristle part 11 can be more securely mounted to the connection mechanism. In this embodiment, the cover 17 also serves as a vibrator to shield on the connection bolt 16 as well as vibrates the bristle part 11 for brushing teeth via a driving shaft 21. Further, the button 19 is moveably mounted to the housing 12 by locating the spring 18 under the button 19 to provide resilient force after the button 19 is pressed. The button 19 has a plurality of hook portions 191 to hook in the corresponding slots 127 formed in the recess 121 of the housing 12. At a normal state, the spring 18 stands on the top of the cover 17 and pushes the button 19 outward. Therefore, the bristle part 11 can be easily mounted to the housing through the engagement of the protrusions 115 of the columns 113 and the round rail 141 of the clicking ring 14. In order to dismantle the bristle part 11, it only needs to press the button 19 to let the hook portions 191 push on the bristle part 11, such that the bristle part 11 is dismounted from the housing 12.

Accordingly, a tooth brush with replaceable bristles is completed by the above-described assembly.

This disclosure provides exemplary embodiments of the present invention. The scope of this disclosure is not limited by these exemplary embodiments. Numerous variations, whether explicitly provided for by the specification or implied by the specification, such as variations in shape, structure, dimension, type of material or manufacturing process may be implemented by one of skill in the art in view of this disclosure. 

1. A brush head of a tooth brush comprising: a housing; a connection mechanism fixedly installed in the housing; a bristle part detachably mounted to the connection mechanism; and a button movably mounted to the housing by the connection mechanism, capably to be pushed toward the bristle part to dismantle the bristle part from the connection mechanism.
 2. The tooth brush of claim 1, wherein the housing includes a recess with a through hole formed therein, and the connection mechanism includes a clicking ring and a connection bolt putting in the through hole from one side of the housing for the clicking ring putting on the connecting bolt from the other side of the housing to complete the installation of the connection mechanism in the housing.
 3. The tooth brush of claim 2, wherein the bristle part includes at least one column to clip on the clicking ring.
 4. The tooth brush of claim 3, wherein the clicking member has a round rail and the column of the bristle part has a protrusion to clutch in the round rail so that the bristle part is detachably mounted to the clicking member.
 5. The tooth brush of claim 3, wherein the bristle part further includes a cavity to receive a foot section of the connection bolt when the bristle part is mounted to the clicking ring.
 6. The tooth brush of claim 5, wherein the foot section is formed as a hexagon head to fit in the cavity with a corresponding hexagonal hole.
 7. The tooth brush of claim 2, wherein the connection mechanism further includes a locking member to clamp on the connection bolt so that the clicking ring is sandwiched between the locking member and a bottom of the recess.
 8. The tooth brush of claim 7, wherein the connection bolt has a slit formed adjacent a foot section thereof for the locking member securely clamping thereon.
 9. The tooth brush of claim 2, wherein the connection mechanism further includes a supporting ring located on a body section of the connection bolt and between a bottom of the recess and a head section of the connection bolt.
 10. The tooth brush of claim 9, wherein the head section is larger than the body section to securely position the supporting ring between the bottom of the recess and the head section of the connection bolt.
 11. The tooth brush of claim 2, wherein the connection mechanism further includes a cover shield on the connection bolt.
 12. The tooth brush of claim 11, further comprising a driving shaft connected to the cover to vibrate the bristle part via the connection bolt for teeth brushing.
 13. The tooth brush of claim 11, wherein the connection mechanism further includes a spring located between the cover and the button.
 14. The tooth brush of claim 13, wherein the button has a hook portion to mount in a slot formed in the recess so that when the button is pressed, the hook portion pushes the bristle part to be dismantled from connection mechanism. 